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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: wx/datetime.inl | |
3 | // Purpose: definition of inline functions of wxDateTime and related | |
4 | // classes declared in datetime.h | |
5 | // Author: Vadim Zeitlin | |
6 | // Remarks: having the inline functions here allows us to minimize the | |
7 | // dependencies (and hence the rebuild time) in debug builds. | |
8 | // Modified by: | |
9 | // Created: 30.11.99 | |
10 | // RCS-ID: $Id$ | |
11 | // Copyright: (c) 1999 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr> | |
12 | // Licence: wxWindows license | |
13 | ///////////////////////////////////////////////////////////////////////////// | |
14 | ||
15 | #ifndef INCLUDED_FROM_WX_DATETIME_H | |
16 | #error "This file is only included by wx/datetime.h, don't include it manually!" | |
17 | #endif | |
18 | ||
19 | // ---------------------------------------------------------------------------- | |
20 | // private macros | |
21 | // ---------------------------------------------------------------------------- | |
22 | ||
23 | #define MILLISECONDS_PER_DAY 86400000l | |
24 | ||
25 | // some broken compilers (HP-UX CC) refuse to compile the "normal" version, but | |
26 | // using a temp variable always might prevent other compilers from optimising | |
27 | // it away - hence use of this ugly macro | |
28 | #ifndef __HPUX__ | |
29 | #define MODIFY_AND_RETURN(op) return wxDateTime(*this).op | |
30 | #else | |
31 | #define MODIFY_AND_RETURN(op) wxDateTime dt(*this); dt.op; return dt | |
32 | #endif | |
33 | ||
34 | // ---------------------------------------------------------------------------- | |
35 | // wxDateTime construction | |
36 | // ---------------------------------------------------------------------------- | |
37 | ||
38 | // only define this once, when included from datetime.cpp | |
39 | #ifdef wxDEFINE_TIME_CONSTANTS | |
40 | const long wxDateTime::TIME_T_FACTOR = 1000l; | |
41 | #endif // wxDEFINE_TIME_CONSTANTS | |
42 | ||
43 | bool wxDateTime::IsInStdRange() const | |
44 | { | |
45 | return m_time >= 0l && (m_time / TIME_T_FACTOR) < LONG_MAX; | |
46 | } | |
47 | ||
48 | /* static */ | |
49 | wxDateTime wxDateTime::Now() | |
50 | { | |
51 | return wxDateTime(*GetTmNow()); | |
52 | } | |
53 | ||
54 | /* static */ | |
55 | wxDateTime wxDateTime::Today() | |
56 | { | |
57 | struct tm *tm = GetTmNow(); | |
58 | tm->tm_hour = | |
59 | tm->tm_min = | |
60 | tm->tm_sec = 0; | |
61 | ||
62 | return wxDateTime(*tm); | |
63 | } | |
64 | ||
65 | #if (!(defined(__VISAGECPP__) && __IBMCPP__ >= 400)) | |
66 | wxDateTime& wxDateTime::Set(time_t timet) | |
67 | { | |
68 | // assign first to avoid long multiplication overflow! | |
69 | m_time = timet; | |
70 | m_time *= TIME_T_FACTOR; | |
71 | ||
72 | return *this; | |
73 | } | |
74 | #endif | |
75 | ||
76 | wxDateTime& wxDateTime::SetToCurrent() | |
77 | { | |
78 | return *this = Now(); | |
79 | } | |
80 | ||
81 | #if (!(defined(__VISAGECPP__) && __IBMCPP__ >= 400)) | |
82 | wxDateTime::wxDateTime(time_t timet) | |
83 | { | |
84 | Set(timet); | |
85 | } | |
86 | #endif | |
87 | ||
88 | wxDateTime::wxDateTime(const struct tm& tm) | |
89 | { | |
90 | Set(tm); | |
91 | } | |
92 | ||
93 | wxDateTime::wxDateTime(const Tm& tm) | |
94 | { | |
95 | Set(tm); | |
96 | } | |
97 | ||
98 | wxDateTime::wxDateTime(double jdn) | |
99 | { | |
100 | Set(jdn); | |
101 | } | |
102 | ||
103 | wxDateTime& wxDateTime::Set(const Tm& tm) | |
104 | { | |
105 | wxASSERT_MSG( tm.IsValid(), _T("invalid broken down date/time") ); | |
106 | ||
107 | return Set(tm.mday, (Month)tm.mon, tm.year, tm.hour, tm.min, tm.sec); | |
108 | } | |
109 | ||
110 | wxDateTime::wxDateTime(wxDateTime_t hour, | |
111 | wxDateTime_t minute, | |
112 | wxDateTime_t second, | |
113 | wxDateTime_t millisec) | |
114 | { | |
115 | Set(hour, minute, second, millisec); | |
116 | } | |
117 | ||
118 | wxDateTime::wxDateTime(wxDateTime_t day, | |
119 | Month month, | |
120 | int year, | |
121 | wxDateTime_t hour, | |
122 | wxDateTime_t minute, | |
123 | wxDateTime_t second, | |
124 | wxDateTime_t millisec) | |
125 | { | |
126 | Set(day, month, year, hour, minute, second, millisec); | |
127 | } | |
128 | ||
129 | // ---------------------------------------------------------------------------- | |
130 | // wxDateTime accessors | |
131 | // ---------------------------------------------------------------------------- | |
132 | ||
133 | wxLongLong wxDateTime::GetValue() const | |
134 | { | |
135 | wxASSERT_MSG( IsValid(), _T("invalid wxDateTime")); | |
136 | ||
137 | return m_time; | |
138 | } | |
139 | ||
140 | time_t wxDateTime::GetTicks() const | |
141 | { | |
142 | wxASSERT_MSG( IsValid(), _T("invalid wxDateTime")); | |
143 | if ( !IsInStdRange() ) | |
144 | { | |
145 | return (time_t)-1; | |
146 | } | |
147 | ||
148 | return (time_t)((m_time / (long)TIME_T_FACTOR).GetLo()); | |
149 | } | |
150 | ||
151 | bool wxDateTime::SetToLastWeekDay(WeekDay weekday, | |
152 | Month month, | |
153 | int year) | |
154 | { | |
155 | return SetToWeekDay(weekday, -1, month, year); | |
156 | } | |
157 | ||
158 | wxDateTime wxDateTime::GetWeekDayInSameWeek(WeekDay weekday) const | |
159 | { | |
160 | MODIFY_AND_RETURN( SetToWeekDayInSameWeek(weekday) ); | |
161 | } | |
162 | ||
163 | wxDateTime wxDateTime::GetNextWeekDay(WeekDay weekday) const | |
164 | { | |
165 | MODIFY_AND_RETURN( SetToNextWeekDay(weekday) ); | |
166 | } | |
167 | ||
168 | wxDateTime wxDateTime::GetPrevWeekDay(WeekDay weekday) const | |
169 | { | |
170 | MODIFY_AND_RETURN( SetToPrevWeekDay(weekday) ); | |
171 | } | |
172 | ||
173 | wxDateTime wxDateTime::GetWeekDay(WeekDay weekday, | |
174 | int n, | |
175 | Month month, | |
176 | int year) const | |
177 | { | |
178 | wxDateTime dt(*this); | |
179 | ||
180 | return dt.SetToWeekDay(weekday, n, month, year) ? dt : wxInvalidDateTime; | |
181 | } | |
182 | ||
183 | wxDateTime wxDateTime::GetLastWeekDay(WeekDay weekday, | |
184 | Month month, | |
185 | int year) | |
186 | { | |
187 | wxDateTime dt(*this); | |
188 | ||
189 | return dt.SetToLastWeekDay(weekday, month, year) ? dt : wxInvalidDateTime; | |
190 | } | |
191 | ||
192 | wxDateTime wxDateTime::GetWeek(wxDateTime_t numWeek, WeekDay weekday) const | |
193 | { | |
194 | wxDateTime dt(*this); | |
195 | ||
196 | return dt.SetToTheWeek(numWeek, weekday) ? dt : wxInvalidDateTime; | |
197 | } | |
198 | ||
199 | wxDateTime wxDateTime::GetLastMonthDay(Month month, int year) const | |
200 | { | |
201 | MODIFY_AND_RETURN( SetToLastMonthDay(month, year) ); | |
202 | } | |
203 | ||
204 | wxDateTime wxDateTime::GetYearDay(wxDateTime_t yday) const | |
205 | { | |
206 | MODIFY_AND_RETURN( SetToYearDay(yday) ); | |
207 | } | |
208 | ||
209 | // ---------------------------------------------------------------------------- | |
210 | // wxDateTime comparison | |
211 | // ---------------------------------------------------------------------------- | |
212 | ||
213 | bool wxDateTime::IsEqualTo(const wxDateTime& datetime) const | |
214 | { | |
215 | wxASSERT_MSG( IsValid() && datetime.IsValid(), _T("invalid wxDateTime")); | |
216 | ||
217 | return m_time == datetime.m_time; | |
218 | } | |
219 | ||
220 | bool wxDateTime::IsEarlierThan(const wxDateTime& datetime) const | |
221 | { | |
222 | wxASSERT_MSG( IsValid() && datetime.IsValid(), _T("invalid wxDateTime")); | |
223 | ||
224 | return m_time < datetime.m_time; | |
225 | } | |
226 | ||
227 | bool wxDateTime::IsLaterThan(const wxDateTime& datetime) const | |
228 | { | |
229 | wxASSERT_MSG( IsValid() && datetime.IsValid(), _T("invalid wxDateTime")); | |
230 | ||
231 | return m_time > datetime.m_time; | |
232 | } | |
233 | ||
234 | bool wxDateTime::IsStrictlyBetween(const wxDateTime& t1, | |
235 | const wxDateTime& t2) const | |
236 | { | |
237 | // no need for assert, will be checked by the functions we call | |
238 | return IsLaterThan(t1) && IsEarlierThan(t2); | |
239 | } | |
240 | ||
241 | bool wxDateTime::IsBetween(const wxDateTime& t1, const wxDateTime& t2) const | |
242 | { | |
243 | // no need for assert, will be checked by the functions we call | |
244 | return IsEqualTo(t1) || IsEqualTo(t2) || IsStrictlyBetween(t1, t2); | |
245 | } | |
246 | ||
247 | bool wxDateTime::IsSameDate(const wxDateTime& dt) const | |
248 | { | |
249 | return (m_time - dt.m_time).Abs() < MILLISECONDS_PER_DAY; | |
250 | } | |
251 | ||
252 | bool wxDateTime::IsSameTime(const wxDateTime& dt) const | |
253 | { | |
254 | // notice that we can't do something like this: | |
255 | // | |
256 | // m_time % MILLISECONDS_PER_DAY == dt.m_time % MILLISECONDS_PER_DAY | |
257 | // | |
258 | // because we have also to deal with (possibly) different DST settings! | |
259 | Tm tm1 = GetTm(), | |
260 | tm2 = dt.GetTm(); | |
261 | ||
262 | return tm1.hour == tm2.hour && | |
263 | tm1.min == tm2.min && | |
264 | tm1.sec == tm2.sec && | |
265 | tm1.msec == tm2.msec; | |
266 | } | |
267 | ||
268 | bool wxDateTime::IsEqualUpTo(const wxDateTime& dt, const wxTimeSpan& ts) const | |
269 | { | |
270 | return IsBetween(dt.Substract(ts), dt.Add(ts)); | |
271 | } | |
272 | ||
273 | // ---------------------------------------------------------------------------- | |
274 | // wxDateTime arithmetics | |
275 | // ---------------------------------------------------------------------------- | |
276 | ||
277 | wxDateTime wxDateTime::Add(const wxTimeSpan& diff) const | |
278 | { | |
279 | wxASSERT_MSG( IsValid(), _T("invalid wxDateTime")); | |
280 | ||
281 | return wxDateTime(m_time + diff.GetValue()); | |
282 | } | |
283 | ||
284 | wxDateTime& wxDateTime::Add(const wxTimeSpan& diff) | |
285 | { | |
286 | wxASSERT_MSG( IsValid(), _T("invalid wxDateTime")); | |
287 | ||
288 | m_time += diff.GetValue(); | |
289 | ||
290 | return *this; | |
291 | } | |
292 | ||
293 | wxDateTime& wxDateTime::operator+=(const wxTimeSpan& diff) | |
294 | { | |
295 | return Add(diff); | |
296 | } | |
297 | ||
298 | wxDateTime wxDateTime::Substract(const wxTimeSpan& diff) const | |
299 | { | |
300 | wxASSERT_MSG( IsValid(), _T("invalid wxDateTime")); | |
301 | ||
302 | return wxDateTime(m_time - diff.GetValue()); | |
303 | } | |
304 | ||
305 | wxDateTime& wxDateTime::Substract(const wxTimeSpan& diff) | |
306 | { | |
307 | wxASSERT_MSG( IsValid(), _T("invalid wxDateTime")); | |
308 | ||
309 | m_time -= diff.GetValue(); | |
310 | ||
311 | return *this; | |
312 | } | |
313 | ||
314 | wxDateTime& wxDateTime::operator-=(const wxTimeSpan& diff) | |
315 | { | |
316 | return Substract(diff); | |
317 | } | |
318 | ||
319 | wxTimeSpan wxDateTime::Substract(const wxDateTime& datetime) const | |
320 | { | |
321 | wxASSERT_MSG( IsValid() && datetime.IsValid(), _T("invalid wxDateTime")); | |
322 | ||
323 | return wxTimeSpan(datetime.GetValue() - GetValue()); | |
324 | } | |
325 | ||
326 | wxDateTime wxDateTime::Add(const wxDateSpan& diff) const | |
327 | { | |
328 | return wxDateTime(*this).Add(diff); | |
329 | } | |
330 | ||
331 | wxDateTime& wxDateTime::Substract(const wxDateSpan& diff) | |
332 | { | |
333 | return Add(diff.Negate()); | |
334 | } | |
335 | ||
336 | wxDateTime wxDateTime::Substract(const wxDateSpan& diff) const | |
337 | { | |
338 | return wxDateTime(*this).Substract(diff); | |
339 | } | |
340 | ||
341 | wxDateTime& wxDateTime::operator-=(const wxDateSpan& diff) | |
342 | { | |
343 | return Substract(diff); | |
344 | } | |
345 | ||
346 | wxDateTime& wxDateTime::operator+=(const wxDateSpan& diff) | |
347 | { | |
348 | return Add(diff); | |
349 | } | |
350 | ||
351 | // ---------------------------------------------------------------------------- | |
352 | // wxDateTime and timezones | |
353 | // ---------------------------------------------------------------------------- | |
354 | ||
355 | wxDateTime wxDateTime::ToTimezone(const wxDateTime::TimeZone& tz, | |
356 | bool noDST) const | |
357 | { | |
358 | MODIFY_AND_RETURN( MakeTimezone(tz, noDST) ); | |
359 | } | |
360 | ||
361 | // ---------------------------------------------------------------------------- | |
362 | // wxTimeSpan construction | |
363 | // ---------------------------------------------------------------------------- | |
364 | ||
365 | wxTimeSpan::wxTimeSpan(long hours, long minutes, long seconds, long milliseconds) | |
366 | { | |
367 | // assign first to avoid precision loss | |
368 | m_diff = hours; | |
369 | m_diff *= 60l; | |
370 | m_diff += minutes; | |
371 | m_diff *= 60l; | |
372 | m_diff += seconds; | |
373 | m_diff *= 1000l; | |
374 | m_diff += milliseconds; | |
375 | } | |
376 | ||
377 | // ---------------------------------------------------------------------------- | |
378 | // wxTimeSpan accessors | |
379 | // ---------------------------------------------------------------------------- | |
380 | ||
381 | wxLongLong wxTimeSpan::GetSeconds() const | |
382 | { | |
383 | return m_diff / 1000l; | |
384 | } | |
385 | ||
386 | int wxTimeSpan::GetMinutes() const | |
387 | { | |
388 | return (GetSeconds() / 60l).GetLo(); | |
389 | } | |
390 | ||
391 | int wxTimeSpan::GetHours() const | |
392 | { | |
393 | return GetMinutes() / 60; | |
394 | } | |
395 | ||
396 | int wxTimeSpan::GetDays() const | |
397 | { | |
398 | return GetHours() / 24; | |
399 | } | |
400 | ||
401 | int wxTimeSpan::GetWeeks() const | |
402 | { | |
403 | return GetDays() / 7; | |
404 | } | |
405 | ||
406 | // ---------------------------------------------------------------------------- | |
407 | // wxTimeSpan arithmetics | |
408 | // ---------------------------------------------------------------------------- | |
409 | ||
410 | wxTimeSpan wxTimeSpan::Add(const wxTimeSpan& diff) const | |
411 | { | |
412 | return wxTimeSpan(m_diff + diff.GetValue()); | |
413 | } | |
414 | ||
415 | wxTimeSpan& wxTimeSpan::Add(const wxTimeSpan& diff) | |
416 | { | |
417 | m_diff += diff.GetValue(); | |
418 | ||
419 | return *this; | |
420 | } | |
421 | ||
422 | wxTimeSpan wxTimeSpan::Substract(const wxTimeSpan& diff) const | |
423 | { | |
424 | return wxTimeSpan(m_diff - diff.GetValue()); | |
425 | } | |
426 | ||
427 | wxTimeSpan& wxTimeSpan::Substract(const wxTimeSpan& diff) | |
428 | { | |
429 | m_diff -= diff.GetValue(); | |
430 | ||
431 | return *this; | |
432 | } | |
433 | ||
434 | wxTimeSpan& wxTimeSpan::Multiply(int n) | |
435 | { | |
436 | m_diff *= (long)n; | |
437 | ||
438 | return *this; | |
439 | } | |
440 | ||
441 | wxTimeSpan wxTimeSpan::Multiply(int n) const | |
442 | { | |
443 | return wxTimeSpan(m_diff * (long)n); | |
444 | } | |
445 | ||
446 | wxTimeSpan wxTimeSpan::Abs() const | |
447 | { | |
448 | return wxTimeSpan(GetValue().Abs()); | |
449 | } | |
450 | ||
451 | bool wxTimeSpan::IsEqualTo(const wxTimeSpan& ts) const | |
452 | { | |
453 | return GetValue() == ts.GetValue(); | |
454 | } | |
455 | ||
456 | bool wxTimeSpan::IsLongerThan(const wxTimeSpan& ts) const | |
457 | { | |
458 | return GetValue().Abs() > ts.GetValue().Abs(); | |
459 | } | |
460 | ||
461 | // ---------------------------------------------------------------------------- | |
462 | // wxDateSpan | |
463 | // ---------------------------------------------------------------------------- | |
464 | ||
465 | wxDateSpan& | |
466 | wxDateSpan::operator+=(const wxDateSpan& other) | |
467 | { | |
468 | m_years += other.m_years; | |
469 | m_months += other.m_months; | |
470 | m_weeks += other.m_weeks; | |
471 | m_days += other.m_days; | |
472 | ||
473 | return *this; | |
474 | } | |
475 | ||
476 | wxDateSpan& wxDateSpan::Multiply(int factor) | |
477 | { | |
478 | m_years *= factor; | |
479 | m_months *= factor; | |
480 | m_weeks *= factor; | |
481 | m_days *= factor; | |
482 | ||
483 | return *this; | |
484 | } | |
485 | ||
486 | wxDateSpan wxDateSpan::Multiply(int factor) const | |
487 | { | |
488 | return wxDateSpan(*this).Multiply(factor); | |
489 | } | |
490 | ||
491 | wxDateSpan wxDateSpan::Negate() const | |
492 | { | |
493 | return wxDateSpan(-m_years, -m_months, -m_weeks, -m_days); | |
494 | } | |
495 | ||
496 | wxDateSpan& wxDateSpan::Neg() | |
497 | { | |
498 | m_years = -m_years; | |
499 | m_months = -m_months; | |
500 | m_weeks = -m_weeks; | |
501 | m_days = -m_days; | |
502 | ||
503 | return *this; | |
504 | } | |
505 | ||
506 | #undef MILLISECONDS_PER_DAY | |
507 | ||
508 | #undef MODIFY_AND_RETURN |